221549520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{923123}}^1$

素因数の和:923139

約数の個数: 40

約数和(自身を含む): 686804256

約数和(自身を除く): 465254736

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 923123, 1846246, 2769369, 3692492, 4615615, 5538738, 7384984, 9231230, 11077476, 13846845, 14769968, 18462460, 22154952, 27693690, 36924920, 44309904, 55387380, 73849840, 110774760, 221549520]

約数ペア:

[(1, 221549520), (2, 110774760), (3, 73849840), (4, 55387380), (5, 44309904), (6, 36924920), (8, 27693690), (10, 22154952), (12, 18462460), (15, 14769968), (16, 13846845), (20, 11077476), (24, 9231230), (30, 7384984), (40, 5538738), (48, 4615615), (60, 3692492), (80, 2769369), (120, 1846246), (240, 923123)]